Darwin-Hooker Letters : Letter from J. D. Hooker to C. R. Darwin 1 February 1846
Hooker, Joseph Dalton
Darwin-Hooker Letters
<p style='text-align: justify;'>Goes on the assumption that each species has one origin, is immutable, and migrates.</p><p style='text-align: justify;'>Disagrees with Gaudichaud[-Beaupré] that volcanic island species are polymorphous.</p><p style='text-align: justify;'>Some mundane genera vary, others do not (<i>Senecio</i> vs <i>Gnaphalium</i>).</p><p style='text-align: justify;'>John Lindley’s doctrine of longevity of trees is amazing.</p><p style='text-align: justify;'>Edward Forbes’s health is better.</p>